2Torbenson M,Thomas DL, et al. Occult hepatitis B [ J ]. Lancet infe dis,2002,8:479 -486.
3Georgiadou SP,Zachou K,Rigopoulou E,et al. Occult hepatitis B virus infection in Greek patients with chronic hepatitis C and in patients with diverse nonviral hepatic diseases [ J ]. J Viral Hepat,2004,11(4) :358 -365.
4Kannangai R, Molmenti E, Arrazola L, et al. Occult hepatitis B viral DNA in liver carcinomas from a region with a low prevalence of chronic hepatitis B infection [ J ]. J Viral Hepat,2004,11 (4) :297 - 301.
5Allain JP. Occult hepatitis B virus infection:implications in transfusion[J]. Vox Sang,200d,86(2) :83 -91.
7Zhang YY, Hasson BG, Kuo LS, et al. Hepatitis B virus DNA in serum and liver is commonly found in Chinese patients with chronic liver disease despite the presence of antibodies to HbsAg[ J].Hspsyolohy, 1993,17:538 - 544.
8Gomes SA, Yoshida CF, Niel C. Detection of hepatitis B virus DNA in hepatitis B surface antigen-gative serum by polymerase chain reaction of different primer pairs and conditions [ J ]. Acta Virol, 1996,40 : 133 - 138.
9Liu C J, Chen PJ, Shau WY, et al. Clinical aspects and outcomes of volunteer blood donors testing positive for hepatitis-C virus infection in Taiwan: a prospective study [ J ]. Liver Int, 2003,23(3) :148 - 155.
10Hu KQ. Occult hepatitis B virus infection and its clinical implications[J]. J Viral Hepat,2002,9(4) :243 -257.
